Clamp type grain surface sealing device and method

Abstract

The invention provides a clamp type grain surface sealing device and method. The clamp type grain surface sealing device mainly comprises a base and an extrusion component. And a pincerlike structure is formed through the hinge. The jaw can stably clamp an operated object (a U-shaped groove, a hose and a film). By pinching and pressing the handle, the extrusion part of the jaw can extrude the hose, and the hose and the film are pressed into the U-shaped groove together, so that sealing operation is realized. When the handle is released, the handle and the extrusion component automatically reset under the elastic action of the spring. And when the device is moved to the next position, the sealing operation can be continued. Automatic processing of the grain surface sealing process is achieved, operation is easy, and the working efficiency is effectively improved; the extrusion effect on the thin film and the hose can be reduced, and the service life of related facilities is prolonged; and the safety is good, and hands of operators can be prevented from being hurt in the construction process.

Description

Technical Field

[0001] The present invention relates to the technical field of grain surface sealing, and in particular to a clamp-type grain surface sealing device and method. Background Art

[0002] The grain surface sealing method currently widely used in grain depots is to install a U-shaped groove on the walls around the grain silo, and use a hose to press the sealing film into the inner cavity of the U-shaped groove, so that the walls around the grain silo, the bottom of the grain silo and the film on the grain surface together form a sealed fully enclosed structure. In the existing patents "A device and method for grain surface sealing" (publication number CN116335371A) and "A fast adjustable device for grain surface sealing" (publication number CN220191529U), the relative movement of the extrusion structure and the hose is tangential movement, and the tangential force is larger in the interaction force between the two. The hose is subjected to a large shearing effect, while the positive extrusion pressure is small, which may cause greater wear to the hose, thereby affecting its service life. The patent "A simple film-covered sealing device for grain silos" (publication number CN210726061U) describes a simple card body structure to replace the currently commonly used sealing groove structure, but its air tightness depends entirely on the parameter design of the elastic structure of the card body and the elastic properties of the card body material. On the scale of the warehouse circumference, it is difficult for this elastic structure to maintain stable and consistent deformation, so it is not easy to ensure sealing. In addition, the implementation of this patent requires replacing the sealing grooves already installed in the existing warehouse, and existing facilities cannot be used, making it difficult to implement. In short, the above three patents all have some shortcomings. Moreover, there are currently no products related to these patents on the market. In the actual operation of the grain depot, the process of pressing the hose and film into the tank body still requires the operator to manually pinch and press, and use general tools such as rubber hammers and pliers for auxiliary operations. This method is not only time-consuming and labor-intensive, inefficient, and easy to damage the film, but may also cause damage to the workers' hands, and there are certain safety hazards. Summary of the invention

[0003] In response to the above-mentioned problems in the prior art, the present application proposes a clamp-type grain surface sealing device, the main structure of which includes a base and an extrusion component, and the base and the extrusion component are hinged; the base and the extrusion component cooperate to press the hose and the film into the U-shaped groove on the wall.

[0004] In one embodiment, the device as a whole is a clamp-like structure, with a jaw on one side and a handle on the other side; or the jaw and the handle are located on the same side.

[0005] In one embodiment, the base is a housing with a fixed handle that provides support for the extrusion component.

[0006] In one embodiment, the extrusion component includes a movable handle, a transmission connecting rod and a sliding block which are connected in sequence.

[0007] In one embodiment, the extrusion component includes an upper slider, a rear slider, a front connecting rod, a rear connecting rod, a push rod, a movable handle and corresponding hinges; the movable handle is connected to the upper slider through the front connecting rod; the movable handle is connected to the push rod through the rear connecting rod; the upper slider and the rear slider extrude the hose from different directions respectively.

[0008] In one embodiment, a spring is provided between the fixed handle and the movable handle.

[0009] In one embodiment, a spring is provided between the rear slider and the base.

[0010] In one embodiment, during the clamping process of the clamp-type grain surface sealing device, the rear slider contacts the hose before the upper slider.

[0011] The present application also relates to a clamp-type grain surface sealing method, comprising the following steps:

[0012] S1. First clamp the jaws on the U-shaped groove on the wall and the film, and place the hose in the notch of the jaws on the base;

[0013] S2. Squeeze the movable handle tightly, and the movable handle rotates around the hinge, driving the front link and the rear link to move, thereby driving the upper slider and the push rod to move; the push rod pushes the rear slider, and the rear slider squeezes the hose, and the rear slider stops moving after reaching the predetermined position. During this process, the upper slider does not contact the hose, and only slides downward for an empty stroke;

[0014] S3. Continue to squeeze the movable handle, the upper slider contacts the hose, forcing the hose and the film to be pressed into the channel of the U-shaped groove on the wall. During this process, the rear slider remains in the predetermined position to maintain the deformation of the hose to a fixed width.

[0015] In one implementation, the contact surface between the rear sliding block and the push rod is an inclined surface, a transition curved surface and a vertical plane.

[0016] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present invention can be achieved. For example, the connecting rod slider mechanism used in the device can be replaced by a cam mechanism, and the compression spring can be replaced by a leaf spring.

[0017] Compared with the prior art, the clamp-type grain surface sealing device and method provided by the present invention have at least the following beneficial effects: automatic processing of the grain surface sealing process is realized, the operation is simple, and the work efficiency is effectively improved; and the squeezing effect on the film and the hose can be reduced, and the service life of related facilities can be extended; the safety is good, and injuries to the hands of operators during the construction process can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0019] Figure 1 A rear view of the present invention is shown;

[0020] Figure 2 A cross-sectional view of the present invention is shown;

[0021] Figure 3 A perspective view of the present invention is shown;

[0022] Figure 4 A perspective cutaway view of the present invention is shown;

[0023] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0024] Reference numerals:

[0025] 1- movable handle, 2- base, 3- tension spring, 4- compression spring, 5- front connecting rod, 6- upper slider, 7- rear slider, 8- rear connecting rod, 9- push rod, 10- film, 11- hose, 12- wall U-shaped groove. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] The present invention provides a clamp-type grain surface sealing device, such as Figure 1-4 As shown in the figure, the main structure is composed of a base and an extrusion component connected by a hinge. The base is a shell with a handle, which provides support for the extrusion component and clamps the operated object (the U-shaped groove on the wall, the hose and the film); the extrusion component is composed of a movable handle, a slider and a transmission connecting rod and other parts, which can press the hose and the film into the U-shaped groove on the wall. Figure 1As shown, the device is a clamp-like structure with the left half being the jaw and the right half being the handle. The fixed handle is located on the base, and the movable handle rotates around the hinge under the action of external force. A hinge is a mechanical device used to connect two solids and allow relative rotation between them. The structure of a hinge includes the following basic components: Hinge blades or hinge plates, which are the main part of the hinge and are made of metal, such as steel or stainless steel. They are connected together by pins or rivets, allowing relative rotation between the two blades. Pins or rivets, pins or rivets are used to connect the hinge blades together and provide an axis of rotation. These can be cylindrical and can be fixed or removable, depending on the type of hinge. Mounting parts: Hinges are usually equipped with mounting screws or other fasteners to fix the hinge in the desired position. Adjustment mechanism: Some hinges have adjustment mechanisms that allow the user to adjust the opening angle, tension or position. These adjustment mechanisms may include screws, knobs, or spring-loaded mechanisms. Decorative covers or hinge caps: Some hinge designs include decorative covers or hinge caps to hide mounting screws and provide a more aesthetically pleasing appearance. These are removable for maintenance and adjustment. Additional functional components: Depending on the type and purpose of the hinge, other functional components may be included, such as dampers (used to slow down the rotation speed), spring-loaded mechanisms (for automatic recovery), locking mechanisms (used to lock a certain position), etc. The types of hinges are also very diverse, including but not limited to: Ordinary hinges: used to connect two planes, allowing them to rotate relative to each other within a certain range. Spring hinges: built-in springs, can automatically return to the closed position. Damping hinges: with dampers, can slow down the rotation speed, reduce noise and impact. Concealed hinges: designed to hide the hinge blades inside, providing a neater appearance.

[0028] The extrusion component is the main movable component for completing the sealing operation, including an upper slider 6, a rear slider 7, a front connecting rod 5, a rear connecting rod 8, a push rod 9, a movable handle 1 and corresponding hinges. The upper slider 6 is hinged to the front connecting rod 5, and the front connecting rod 5 is hinged to the movable handle 1; the rear slider 7 is connected to the push rod 9 through an inclined sliding connection, the push rod 9 is hinged to the rear connecting rod 8, and the rear connecting rod 8 is hinged to the movable handle 1.

[0029] The spring at the handle is a compression spring 4, and the spring connecting the rear slider and the base is a tension spring 3. These springs play the role of resetting the extrusion component.

[0030] In one embodiment, the connecting rod and slider mechanism can be replaced by a cam mechanism. The connecting rod and slider in the connecting rod and slider mechanism are replaced by the cam and follower in the cam mechanism, and the overall mechanical structure is adjusted according to the layout and size of the cam mechanism to ensure that the relative positions and matching relationships between the components are correct, so that the movement effect of the connecting rod and slider mechanism can be achieved.

[0031] In a specific embodiment, the compression spring 4, which is originally used to provide elastic restoring force and compression function, can be flexibly replaced by other types of elastic elements or mechanisms in its application scenarios and functions. Specifically, in addition to the traditional compression spring, the designer can consider using leaf springs as an alternative. Leaf springs, with their high rigidity and stable elastic performance, can effectively replace compression springs in many occasions, especially in scenarios that require large bearing capacity and stable restoring force. In addition, another innovative alternative is to use a controllable telescopic mechanism. This mechanism can accurately control the length and strength of telescopic movement through electric, pneumatic or hydraulic driving methods, thereby providing a more flexible and controllable compression and recovery function than traditional compression springs. This alternative is particularly suitable for occasions that require precise adjustment and dynamic control, such as precision machinery, automation equipment and other fields. In summary, in one embodiment, the function of the compression spring 4 can be achieved by alternatives such as leaf springs or controllable telescopic mechanisms according to specific needs and design considerations. The compression spring 4 can also be selected from gas springs, hydraulic springs, rubber springs or other mechanical springs.

[0032] The specific steps for grain film sealing are as follows:

[0033] (1) Figure 2 As shown, first clamp the jaw portion on the U-shaped groove 12 on the wall and the film 10 , and place the hose 11 at the notch at the jaw position of the base 2 .

[0034] (2) Squeeze the movable handle 1 tightly, the compression spring 4 will be compressed, and the movable handle 1 will rotate counterclockwise around the hinge, driving the front link 5 and the rear link 8 to move in a plane, thereby driving the upper slider 6 and the push rod 9 to move downward. The contact surface between the rear slider 7 and the push rod 9 is an inclined surface, and it will move to the left under the push of the push rod 9. The tension spring 3 is stretched, and the rear slider 7 squeezes the hose 11 and gradually flattens it. At this time, the upper slider 6 is at a certain distance from the hose 11 and will not exert force on the hose.

[0035] (3) Continue to squeeze the movable handle 1, the push rod 9 continues to move downward, and the contact surface with the rear slider 7 becomes a vertical plane, and no longer generates horizontal thrust on the rear slider 7. The rear slider 7 moves to the left to the limit position and will remain in this position, maintaining the hose 11 being flattened to a fixed width. During this process, the upper slider 6 continues to move downward and contacts the hose 11, forcing the hose 11 and the film 10 to be pressed into the channel of the U-shaped groove on the wall, completing the sealing operation.

[0036] (4) Release the handle, the compression spring 4 recovers its shape and resets the movable handle 1. The tension spring 3 recovers its shape and brings the rear slider 7 back to its original position. A complete sealing process is completed.

[0037] (5) Slide the device horizontally along the U-shaped groove on the wall to the next position, repeat the above steps (1) to (4), and continue the sealing operation until the grain surface is completely sealed.

[0038] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. A clamp-type grain surface sealing device, characterized in that: The main structure includes a base and an extrusion component, and the base and the extrusion component are hinged; the base cooperates with the extrusion component to press the hose and the film into the U-shaped groove on the wall.

2. The clamp-type grain surface sealing device according to claim 1, characterized in that: The device is a clamp-type structure as a whole, with a jaw on one side and a handle on the other side; or the jaw and the handle are located on the same side.

3. The clamp-type grain surface sealing device according to claim 1, characterized in that: The base is a housing with a fixed handle that provides support for the extrusion.

4. The clamp-type grain surface sealing device according to claim 3, characterized in that: The extrusion component comprises a movable handle, a transmission connecting rod and a sliding block which are connected in sequence.

5. The clamp-type grain surface sealing device according to claim 1, characterized in that: The extrusion component includes an upper slider, a rear slider, a front connecting rod, a rear connecting rod, a push rod, a movable handle and corresponding hinges; the movable handle is connected to the upper slider through the front connecting rod; the movable handle is connected to the push rod through the rear connecting rod; the upper slider and the rear slider extrude the hose from different directions respectively.

6. The clamp-type grain surface sealing device according to claim 4, characterized in that: An elastic component is arranged between the fixed handle and the movable handle.

7. The clamp-type grain surface sealing device according to claim 5, characterized in that: An elastic component is arranged between the rear slider and the base.

8. The clamp-type grain surface sealing device according to claim 5, characterized in that: During the clamping process of the clamp-type grain surface sealing device, the rear slider contacts the hose before the upper slider.

9. A clamp-type grain surface sealing method, characterized in that: The following steps are involved: S1. First clamp the jaws on the U-shaped groove on the wall and the film, and place the hose in the notch of the jaws on the base; S2. Squeeze the movable handle tightly, and the movable handle rotates around the hinge, driving the front link and the rear link to move, thereby driving the upper slider and the push rod to move; the push rod pushes the rear slider, and the rear slider squeezes the hose, and the rear slider stops moving after reaching the predetermined position; during this process, the upper slider does not contact the hose, and only slides downward for an empty stroke; S3. Continue to squeeze the movable handle, the upper slider contacts the hose, forcing the hose and the film to be pressed into the channel of the U-shaped groove on the wall. During this process, the rear slider remains in the predetermined position to maintain the deformation of the hose to a fixed width.

10. The clamp-type grain surface sealing method according to claim 9, characterized in that: The contact surfaces between the rear sliding block and the push rod are an inclined surface, a transition curved surface and a vertical plane.

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